Superstition DVD (with special gimmick)Imagine offering your spectator the chance to select themselves a 'lucky card', which they do say it is the Five Of Diamonds. You comment that while that is not a bad card, you have a REALLY good one that you keep on you at all times, attached to your keyring. It is trapped between two blank cards to ensure that nothing can happen to it. There are clearly only three cards on the keyring. You then cleanly display your lucky card say the Jack Of Spades.